Re: How to set MASK & filter value for -- freescale Flexcan controller

Thanks for reply, is it fine now ?
*MASK ---> put 0 where ever bits differ & 1 where bits are same*


On Mon, Sep 2, 2013 at 6:06 PM, J Nagy <[email protected]> wrote:

> Suppose i want to receive only ID_1 & ID_2.
>
> ID_1  =  0x01;       // 0000 0001
> ID_2  =  0x33;       // 0011 0011
> mask = 0x32;       // 0011 0010
> filter =    0x01;       // 0000 0001
>
> For MASK ---> put 1 where ever bits differ & 0 where bits are same
> For FILTER  --> dont care different bits & copy value where bits are same
>
>
> Is above two steps right ?
>
>
> No. The filter sounds right, but the mask must be 1 whenever the filter
> bit is significant, whether it is a 0 or a 1.
>
> Jim
>
>